I think I’ve got an answer for you.

One reason for trapped gas is your food not being properly or fully digested at the best part of your digestive system. After you eat food it needs to hang out in the stomach and upper intestines for a while. If the food is still being digested in the lower intestine you are going to have a bad time. You will hear a lot of gurgling and gas bubbles will be floating around all over the place.
This is what you need to do I think:

1) Don’t shit too much!! This will encourage partially undigested food to progress too quickly in your digestive tract. Pretty much once a day should be good enough. A few hours after waking up is a good time often. This is the best single suggestion I have. Although it is almost counterintuitive because as soon as undigested food is hanging out in the lower intestines expelling it does seem like the thing to do and does bring temporary relief.

2) Then you should try to eat only during meal times (say 9am 1pm 6pm) and then give it a break for the rest of the time.

3) And then a bunch of little hints are important like don’t eat too much, and yogurt helps complete digestion, and junk food maybe isn’t good for you, and stuff like that.

I hope this helps!